Hose-making apparatus



NOV, 25, 1924.

r.,1. fc. RANKIN HOSE MAKING APPARATUS 2 Swank-Fw 2 Patented Nov. 25, 1924.

STATES 1,516,520; PATENT OFFICE.

JAMES G. RANKIN, OF AKRON, OHIO, vASSIGNOB. T0 THE B. F. GOODRICH-COMPANY, OF

NEW YORK, N. Y., A CORPORATION 0F NEW YORK.'

Boss-MAKING ArPAnATUs. w

Application filed June y13, 1922. 4Serial No. 568,053.

To all whom t may concern:

Be it known that I, JAMES C. RANKIN, a citizen of the United States, residing at Akron, in the county of Summit and State of Ohio, have invented a certain new and useful Hose-Making Apparatus, of which the following is a specification.

This invention relates to the art of manufacturing hose and particularly hose having a helical reinforcement such `,as a winding of wire Within its Wall or upon its surface.

My objects are to obtain an accurate winding of the reinforcement, to provide an improved labor-saving apparatus adapted simultaneously to apply the helical windmg, with or Without a coat of cement, to a plurality of 'lengths of hose material, and in the case of a wire winding, more particularly, to vary the pitch of the winding at certain points in order to facilitate the cutting of a long length of hose into sections; and to provide a device readily adaptable for windings of different pitch.

Of the accompanying drawings:

Fig. 1 is a side elevation of an apparatus embodying my invention, with parts broken away. l

Fig. 2 is a section on line 2-2 of Fig. 1. Fig. 3 is a section on line 3-3 of Fig. 1, with the cementing attachments removed.

Fig. 4 is a section on line 4 of Fig. 1, partsv being broken away.

Fig. 5 is a section on line 3-3 of Fig. 1, on a larger scale, with the cementing attachments in operative position, parts being broken away.

Fig. 6 isa side elevation of a part of the apparatus, on a large scale, showing the cementing attachments.

Referringto the drawings, 10 is a long bench upon one end of which is mounted 'a multiple-bearing bracket or standard 11 (Figs. l and 2) formed with a plurality (here shown as 4) horizontal bearings running lengthwise of the bench 10 and aligned in a serles sloping upward and backward from the front of the bench. In each bearing is journaled the spindle 12 of a mandreldriving chuck 13. Upon the rear end of each of said spindles is secured a gear 14, 14, "said gears being meshed in a. chain with alternate gears 15, 15 journaled on studs 16, 16, rejecting from the standard 11. One of t e spindles 12 of the chucks 13 is provided with an enlarged extension 17 beyond its gear 14,"said extension being adapted to be turned by suitable means, such as the chuck 18 here shown (Fig. 1) to rotate the several chucks 13, the specific device here shown being adapted to rotate them in the same direction and at the same speed, counter-clockwise, as viewed in Fig. 2.

At one or more .places along the bench 10 I mount a standard or standards such as is shown at 19, upon which arev loosely journaled pairs of mandrel-su porting rollers 20, 20, each pair of said rol ers being adapted rotatably to support a hose mandrel, 21, 21, or a master-mandrel or feed-screw 22, mounted in the respective chucks 13, the feed-screw bein here shown as mounted in the uppermost c uck 13. Each of the mandrels preferably comprises an end section 21a adapted to be gripped in the chuck and so formed on its projecting end as freely to receive the hollow end of the mandrel proper and drive the latter, means such as the vspring latch 21b being provided to hold them together, although permitting their Vseparation by a Simple pull on the mandrel proper, and to compel them to rotate together. l

The feed screw 22 may consist of an ordinary hose mandrel having a round wire 22 wound helically thereon, in alternate convolutions with a at wire 22b serving as spacing means for said round wire, and at intervals said flat wire may be omittedfor a space and the round wire soldered to the mandrel in relatively steep convolutions, as indicated at 22c (Fig. 1), to provide for a: wider spacing of the Wlre winding on the work .at corresponding positions, as will be' hereinafter explained. f

For carryingl wire-spools, 23, 23 from which wires 24, 24 may be drawn onto the mandrels 2l by the rotation of the latter, I(

ber 28 on which arejournaled flanged wheels 29, 29 adapted to run in contact with the outer ,edge of the rail 26, their flanges preventing their downwardl movement and their cylindrical faces preventing their diprovide a laterally inclined carriage '25T rectly upward movement/ with. respect to said rail. Secured in said beam member and inclined upward and backward over the lnandrels and feed-screw are three parallel, aligned rods, 30, 31,132, extending slidably through an upper beam member 33 secured to the side of a truck 34 adapted to run on the feed-screw 22. 29", 29a are wheels mounted upon the carriage and adapted to run on the rail 27. The rods and 32 are provided with helical compression springs 35, 35 on their upper endsfadapted to bear against retaining nuts 36, 36 on the ends of said rods and against the beammember 33 tourge said rods yieldingly upward with respect to the latter, so as to compensate for inequalities in the spacing of the feed-screw 22 from therails 26, 27. The

rods 30 and 32 are provided with collars 37, 37 secured thereon below the beam 33 to vlimit their upward movement with respect to the latter when the lower side of the carriage 25 is swung from the rails 26, 27 on occasion, as hereinafter described.

The truck 34 comprises a pair of side plates 34, 34", suitably connected by shouldered strut-members 34", 34", between which plates is pivoted at 38 a shoe 39 fitting over the feed-screw 22 and adapted to ride upon the ylatter partially to support said truck during the latters opera-tive movement. For supporting the other end of said truck and driving the carriage 25 I provide a vertical, transverse plate 40, the lower edge of which fits over the feed-screw 22 between adjacent threads thereof, said platebeing secured to the lower end of a vertical bolt 41 (Fig. 4) rojecting downward from the truck 34. aid bolt is rotatably mounted in a sleeve 41", the latter being threaded through one of the strut-members 34", so as to be vertically adjustable, to compensate for wear ot the plate 40. The bolt v41 is provided with a head 41" and a cotter pin 41c adapted to prevent longitudinal movement of said bolt in said sleeve. 41d is a lock-nut on said sleeve. For clearing the shoe 39 and the driving plate 40 from the feed-screw 22, to permit Athe free return of the carriage 25 to starting position, a pair of V-rollers 42, 42 are journaled between the arms of respective forks 43, 44 pivoted at 43a and 44a between the plates 34", the journals of said V-rollers beraise the truck 34fonto said rollers.

ing connected bv a link 45 and one of said forks being extended above its pivot in a hand-lever 46 by which said forks maybe simultaneously turned about their pivotrfltlo e plates 34" are cut away to form wnotches 47, 47 and the journals of the rollers 42 are extended through said notches, the notches being so formed and positioned as to stop the pivotal movement of the forks 43, 44 when the latter are in a past-center position, so that the truck will continue to be supported by the V-rollers 42 when the lever 46 is thrown to the left, as viewed in Fig. 1, and released.

The spool supporting means comprises a set of journal brackets 48, 48secured in aligned pairs'upon the rods 31 and 32 of the carriage 25, the brackets of-each pair being connected by a brace rod 49. A s oolsupporting arbor 50 is journaled in eacli pair of said brackets, each arbor having a square end portion 50a (Fig. 3) projecting beyond th rod 31 and adapted to receivev and prevent relative rotation of one of the spools 23.V 51 is a spring-backed, cam-latch on said arbor adapted to hold the spool thereon. Each of the arbors is provided with a tension brake- For further tensioning each of the wires 24 and guiding it onto the respective mandrel 21, abracket 53 is secured' on the rod 30 by a clamp 53" and a wire tensioning and duiding device including a wire laying nger 54 (Fig. 3) is pivoted at 55 on said bracket, said wire-laying `finger having a slotted, wire guiding end adapted to bear yieldingly against the work under pressure of a compression spring (not shown) interposed between said finger and the bracket 53 on which it is pivoted. A rearward extension 58 from said finger is adapted to abut a pin 59 on said bracket to limit the pivotal* movement of said finger when the carriage 25 is lifted from the work. Secured upon the bracket 53 is a wire-guiding and tension- '.ing tube 60, said tube being curved at its middle portion and thus adapted to tension y the wire as the latter is drawn therethrough and also to iron out bends in the wire, which sometimes comes from the spool -with such bends in it as would result in an unequal spacing of the wire convolutions upon the work if its set were not so modified by pass infr it through the bent tube.

n the making of certain types of hose, a coating of rubber cement is applied thereto after the wire winding, and for this purpose 1 provide a cementing device comprislng a.

Asupply tank 61 mounted upon the truck 34 and having an outlet pipe 62 with a shut-olf valve 62a therein, from which outlet pipe flexible tubes 63 `extend to positions directly over the respective mandrels 21, where each is supported by a bracket 64 projecting from an arm 65 pivotally mounted on the carriage 25. Each of said arms is so curved as to pass over thc adjacent wire spool 23, and-is formed with a foot 66/adapted to ride uponk the work as the carriage moves along the latter. 67, 67 are over-center pull sprin ls adapted to hold said arms down against t e work but to permit them to be turned upward about their pivots, as shown in dotand-dash lines in Fig. 6, to clear them from the work for the free running of the carriage between operations. 68, 68 are cement-disv tribut-ing rollers journaled respectively on ll t) said arms directly .under the delivery ends of the flexible tubes 63- and adapted to re` ceive cement as it Vruns from the nozzles 6?a of said tubes and smear it upon the work,

Ysaid rollers being adapted to contact and be rotated by the Work.

For receivingthe carriage 25 and supporting it out of the way during the insertion and removal of the work, l provide a rail 69 (Figs. 1 and 2) mounted on a post 70 rising from the bench and upon the standard 11, said rail being parallel with but lhigher than the feed-screw 22, and adaptedv to be run upon by the wheels 42 of the truck 3d, and l provide a detachable bridge raill 71 adapted to'be connected at one end with the rail 69 and at the other end to rest upon the feed-screw 22, so that said truck may run thereon from the feed-screw to the rail 69. I also provide a rail 72 on the front margin of the bench 10, in position to receive the wheels 29 of the carriage when the latter is run onto said rail 69. i

ln the operation of the apparatus, the carriage being supported by the rails 69 and 72, a feed-screw, 22, suitable for vthe type of Winding desired, is mounted upon the uppermost'set of supporting rollers 20 and secured in the uppermost chuck 13, andl end portions of said sections, being auto- J matically latched thereon by the latches 21d.

The carriage 25 is then run from the rail 69, down the rail 7 1, onto the feed-screw 22, its lower side being lifted and carried by the operator and deposited with its wheels 29, 29a on the rails 26, 27.

rlhe bridge rail 71 is then removed, the carriage run back to the end of the work adjacent the chucks 13, the lever 46 turned to lower the truck 34 until the shoe 39and the fed-plate lt() rest upon the yfeed-screw 22, and the wires 24 are started upon the respective mandrels by hand and secured in any suitable manner. The arms are then turned about their pivots until their shoes 66 and cement distributing rollers 68 rest upon the mandrels, the valve 62a is Aopened to permit cement to flow through the tubes 63, and power is applied through the chuck 18 to rotate the feed screw 22 `and mandrels 21. While the apparatus here shown is adapted to rotate them at the same speed and inthe same direction, counter-clockwise, as viewed in Figs. 2 and 3, I do not wholly limit my claims to so rotating them;

Thel carriage 25 is thereby driven along vthreads or convolutions of the wire 22a at lother end of wire is secured to the work in any Suitable manner.

The arms 65 are then turned over to thc positions indicated, as to one of them, by dot-and-dash lines in Fig. 6, the level' 46 is moved to the' left, as viewed in Fig. 1, to cause the wheels 42 to su port the truck 34, and the operator, lifting tlie lower side of the carriage 25, which turns about the feed screw 22 as a pivot, runs it back to the first end of the mandrels, the shoe 39 and driving plate 40 being clear of the feed-screw. He then places in position the bridge rail 71 and runs the carriage thereover onto the rails 69 and 2. The mandrels 21 with the work thereon are removed, a new set inserted. and the operation as described is repeated.

Modifications may be resorted to'without departing from the scope of my invention.

and I do not Wholly limit my claims to the specific embodiment here shown and described. a.

I claim:

1. Hose making apparatus comprising a hose mandrel, a feedscrew, means for supporting said feed-Screw, Aand said mandrel in parallel relation and rotating them. a carriage adapted to be driven along said mandrel by said feed-screw, a wire supply spool adapted to give olf wire to said mandrel and means mounted on said carriage for guiding Wire from said spool onto the work, said wire guiding means including a bent tube through which the Wire passes from said spool to the work.

2. Hoser making'apparatus comprising a hose mandrel, a feed-screw, means/for supporting said feed-screw and saidY mandrel in parallel relation and rotating them, a carriage adapted to be driven along said mandrel by said feed-screw, a Wire-supplyy spool adapted to give ofi' wire to said mandrel, means mounted on said carriage for l JU guiding Wire from said spool onto the work, and means driven by said feed-screw for appl ing cement to the Work.

3. ose making apparatus comprising a hose mandrel, a feed-screw, means for supporting said feed-screw and said mandrel 1n parallel relation and rotating them, a carria e adapted to be driven along said mandre by said feedscrew,'a wire-supply s ool adapted to give off Wire to said man rel, means mounted on said carriage for guiding Wire from said spool onto the Work, and means driven by said feed-screw for applying cement to the work, saidcement-applying means comprising a cement-distributing member adapted progressively to contact the work and means for supplying cement to said member.

4. Hose making apparatus comprising a. feed-screw, means for supporting and rotating the same, a pair of-rollers adapted freely to receive a4 hose mandrel laid thereon and to rotatably support the same, a chuck adapted to grip one end of said mandrel, said chuck and said pair of rollers being so positioned as to support said mandrel in parallel relation and adjacent to said feedscrew, a Wire-supplying carriage adapted to be driven along said mandrel by said feedscrew, and means for driving said chuck and said feed-screw at determinate relativey speeds.

5. Hose making apparatus comprising a feed-screw, a hose mandrel, means for supporting said feed-screw and said mandrel 1n parallel relation and rotating them, a Wiresupplying carriage adapted to be driven by said feed-screw along said mandrel, a wheel on said carriage adapted to run Vupon said feed-screw to support said carriage, and a detachable bridge rail adapted to rest upon said feed-screw and to receive said Wheel for the removal of said carriage from said feedscrew.

/ 6. Hose making apparatus comprising a feed-screw having a thread of varying pitch a hose mandrel, means for supporting said mandrel and said feed-screw in parallel relation and rotating them at constant relative speeds, and wire-supplying carriage adapted to be driven along said mandrel by said feed-screw.

7. Hose makin apparatus comprising a rotary member a apted axially to receive in supporting engagement one end of a hose mandrel, a hose mandrel ada ted to be associated with said rotary mem er by an axial thrust of said mandrel, a latch adapted Ato ,resist axial and angular movement of said mandrel with relation to said member, means for rotatably supporting the other end portion of said mandrel, means for driving said rotary member to rotate said mandrel, and means for feeding a strand of material onto said mandrel as it is rotated.

8. Hose making apparatus comprising a feed-screw, a set of hose mandrels, means for supporting said feed-screw and said hose mandrels horizontallyin substantiall parallel relation, means for rotating saidy feedscrew and hose mandrels, a rail mounted substantially parallel with said feed-screw and lnandrels, a carriage adapted to run on said rail and said feed-screw and to be driven by the latter, yielding. lneans interposed operatively between parts of said carriage andfgadapted to compensate for variations in the distance between said feedscrew and said rail, and wire-supplying means on/said carriage from which wire may be drawn onto said mandrels by their ro` tation.

9. Hose making apparatus comprising a. feed-screw, a plurality of hose mandrels, means for rotatably supporting said feedscrew and said mandrels in arallel relation,

means for driving said fee -screw and said.

`from each of said s ools onto the corresponding mandrel as 1t is drawn thereon by t e rotation of said mandrel.

10. Hose making apparatus comprising a feed-screw a 'plurality of hose mandrels, an inclined series of chucks adapted respectively to support one end of the feed-screw or a mandrel and drive the same,the axes of rotation of said chucks being parallel and substantially horizontal, means for driving said chucks at determinate relative speeds, means for rotatably supporting the opposite ends of said feed-screw and mandrels, said supportin means for the mandrels being adapted free y to receive the latter from above, a rail moimted parallel/.with the axes of said chucks, along said mandrels, a .carria e mounted Won said rail and adapted to driven by said feed-screw along said mandrels, and wire-supplying and wire-guiding means mounted on said carriage, for each of said mandrels, said rail and said feed-screw constituting su porting means for said carriage, and sai carriage being adapted, on occasion, to be run, free of the work, upon its saidy supporting means.

In witness whereof l have hereunto set my hand this 6 day of June, 1922.

y JAMES C. RANKIN. 

